Belvidere, IL Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Belvidere, IL in one place.
A chance of rain showers before 10am, then a chance of showers and thunderstorms between 10am and 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 72.
Local Weather Overview
This forecast page for Belvidere, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 9, 2026 5:01 PM CDT.
The active forecast window currently covers Apr 12 to Apr 15, 2026 for Belvidere, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 12 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 5:01 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Belvidere
Tuesday looks like the warmest upcoming period in Belvidere at 79 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Sunday at about 15 to 25 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 5:01 PM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Cloudy, with a low around 61.
A chance of showers and thunderstorms before 1pm, then a slight chance of showers and thunderstorms. Mostly cloudy, with a high near 77.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63.
A chance of showers and thunderstorms before 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 79.
Showers and thunderstorms. Mostly cloudy, with a low around 57.
Showers and thunderstorms likely. Partly sunny, with a high near 69.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 49.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
Apr 12
|
Chance Showers And Thunderstorms
|
72°F |
15 to 25 mph
SSW
|
|
Sunday Night
Apr 12
|
Chance Showers And Thunderstorms
|
61°F |
15 to 25 mph
SW
|
|
Monday
Apr 13
|
Chance Showers And Thunderstorms
|
77°F |
15 mph
SW
|
|
Monday Night
Apr 13
|
Chance Showers And Thunderstorms
|
63°F |
10 to 15 mph
SSW
|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
79°F |
15 mph
SSW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
57°F |
15 mph
SSW
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
69°F |
15 to 20 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
49°F |
10 to 15 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Belvidere.
